. 2011 May;6(5):1066–1072. doi: 10.2215/CJN.09321010

Table 2.

Echocardiographic volume parameter at baseline and its change over time between intervention groups

Echocardiographic Volume Parameter	Interventi on Group	Baseline			Week 4 Change from Baseline			Week 8 Change from Baseline
Echocardiographic Volume Parameter	Interventi on Group	Mean	95% Confidence Interval	P	Mean	95% Confidence Interval	P	Mean	95% Confidence Interval	P
IVC inspiration index (mm/m²)	Control	4.94	(3.97, 5.90)		0.44	(−0.26, 1.14)	0.22	0.81	(0.01, 1.61)	0.046^a
	UF	5.24	(4.45, 6.03)		−0.51	(−1.02, −0.01)	0.047^a	−0.37	(−0.91, 0.18)	0.191
	UF-Control	0.31	(−0.65, 1.26)	0.53	−0.95	(−1.81, −0.09)	0.031^a	−1.18	(−2.15, −0.21)	0.017^a
IVC expiration index (mm/m²)	Control	8.2	(7.26, 9.15)		0.43	(−0.35, 1.22)	0.278	0.78	(−0.08, 1.64)	0.076
	UF	8.19	(7.48, 8.90)		−0.63	(−1.20, −0.06)	0.029^a	−0.29	(−0.88, 0.30)	0.332
	UF-Control	−0.01	(−1.07, 1.05)	0.985	−1.06	(−2.03, −0.10)	0.031^a	−1.07	(−2.12, −0.03)	0.044^a
Left atrial diameter index (cm/m²)	Control	2.13	(1.97, 2.29)		0.07	(−0.01, 0.16)	0.074	0.06	(−0.03, 0.14)	0.21
	UF	2.2	(2.07, 2.34)		−0.06	(−0.13, −0.00)	0.035^a	−0.1	(−0.16, −0.04)	0.002^b
	UF-Control	0.08	(−0.06, 0.22)	0.286	−0.14	(−0.24, −0.04)	0.007^b	−0.15	(−0.26, −0.05)	0.005^b
Collapse index (%)	Control	39.86	(32.25, 47.46)		0.25	(−5.73, 6.23)	0.935	−3.18	(−9.83, 3.47)	0.349
	UF	36.51	(29.98, 43.03)		2.22	(−2.05, 6.50)	0.308	3.12	(−1.40, 7.64)	0.177
	UF-Control	−3.35	(−9.71, 3.01)	0.302	1.98	(−5.37, 9.33)	0.598	6.3	(−1.73, 14.32)	0.124
Hepatic vein systolic filling fraction (%)	Control	57.22	(54.32, 60.12)		−0.22	(−3.68, 3.24)	0.901	−1.08	(−4.74, 2.58)	0.564
	UF	56.48	(54.60, 58.36)		1.99	(−0.35, 4.34)	0.096	0.38	(−2.21, 2.98)	0.771
	UF-Control	−0.74	(−4.19, 2.72)	0.676	2.21	(−1.97, 6.39)	0.3	1.46	(−3.03, 5.95)	0.523